<template>
  <div class="login">
    <el-form ref="loginRef" :model="loginForm" :rules="loginRules" class="login-form">
      <h3 class="title">电梯管理系统</h3>
      <el-form-item prop="tenantId" v-if="tenantEnabled">
        <el-select v-model="loginForm.tenantId" filterable placeholder="请选择/输入公司名称" style="width: 100%">
          <el-option v-for="item in tenantList" :key="item.tenantId" :label="item.companyName"
                     :value="item.tenantId"></el-option>
          <template #prefix>
            <svg-icon icon-class="company" class="el-input__icon input-icon" />
          </template>
        </el-select>
      </el-form-item>
      <el-form-item prop="username">
        <el-input v-model="loginForm.username" type="text" size="large" auto-complete="off" placeholder="账号">
          <template #prefix>
            <svg-icon icon-class="user" class="el-input__icon input-icon" />
          </template>
        </el-input>
      </el-form-item>
      <el-form-item prop="password">
        <el-input v-model="loginForm.password" type="password" size="large" auto-complete="off" placeholder="密码"
                  @keyup.enter="handleLogin">
          <template #prefix>
            <svg-icon icon-class="password" class="el-input__icon input-icon" />
          </template>
        </el-input>
      </el-form-item>
      <el-form-item prop="code" v-if="captchaEnabled">
        <el-input v-model="loginForm.code" size="large" auto-complete="off" placeholder="验证码" style="width: 63%"
                  @keyup.enter="handleLogin">
          <template #prefix>
            <svg-icon icon-class="validCode" class="el-input__icon input-icon" />
          </template>
        </el-input>
        <div class="login-code">
          <img :src="codeUrl" @click="getCode" class="login-code-img" />
        </div>
      </el-form-item>
      <el-checkbox v-model="loginForm.rememberMe" style="margin:0px 0px 25px 0px;">记住密码</el-checkbox>
      <!--      <el-form-item style="float: right;">-->
      <!--        <el-button circle title="微信登录" @click="doSocialLogin('wechat')">-->
      <!--          <svg-icon icon-class="wechat" />-->
      <!--        </el-button>-->
      <!--        <el-button circle title="MaxKey登录" @click="doSocialLogin('maxkey')">-->
      <!--          <svg-icon icon-class="maxkey" />-->
      <!--        </el-button>-->
      <!--        <el-button circle title="Gitee登录" @click="doSocialLogin('gitee')">-->
      <!--          <svg-icon icon-class="gitee" />-->
      <!--        </el-button>-->
      <!--        <el-button circle title="Github登录" @click="doSocialLogin('github')">-->
      <!--          <svg-icon icon-class="github" />-->
      <!--        </el-button>-->
      <!--      </el-form-item>-->
      <el-form-item style="width:100%;">
        <el-button :loading="loading" size="large" type="primary" style="width:100%;" @click.prevent="handleLogin">
          <span v-if="!loading">登 录</span>
          <span v-else>登 录 中...</span>
        </el-button>
        <div style="float: right;" v-if="register">
          <router-link class="link-type" :to="'/register'">立即注册</router-link>
        </div>
      </el-form-item>
    </el-form>
    <!--  底部  -->
    <div class="el-login-footer">
      <span>Copyright © 2018-2023 lsl All Rights Reserved.</span>
    </div>
  </div>
</template>

<script setup lang="ts">
import { getCodeImg, getTenantList } from "@/api/login";
import { authBinding } from "@/api/system/social/auth";
import { useUserStore } from "@/store/modules/user";
import { LoginData, TenantVO } from "@/api/types";
import { to } from "await-to-js";
import { HttpStatus } from "@/enums/RespEnum";

const userStore = useUserStore();
const router = useRouter();

const loginForm = ref<LoginData>({
  tenantId: "000000",
  username: "admin",
  password: "admin123",
  rememberMe: false,
  code: "",
  uuid: ""
} as LoginData);

const loginRules: ElFormRules = {
  tenantId: [{ required: true, trigger: "blur", message: "请输入您的租户编号" }],
  username: [{ required: true, trigger: "blur", message: "请输入您的账号" }],
  password: [{ required: true, trigger: "blur", message: "请输入您的密码" }],
  code: [{ required: true, trigger: "change", message: "请输入验证码" }]
};

const codeUrl = ref("");
const loading = ref(false);
// 验证码开关
const captchaEnabled = ref(true);
// 租户开关
const tenantEnabled = ref(true);


// 注册开关
const register = ref(false);
const redirect = ref(undefined);
const loginRef = ref<ElFormInstance>();
// 租户列表
const tenantList = ref<TenantVO[]>([]);

watch(
  () => router.currentRoute.value,
  (newRoute: any) => {
    redirect.value = newRoute.query && newRoute.query.redirect && decodeURIComponent(newRoute.query.redirect);
  },
  { immediate: true }
);

const handleLogin = () => {
  loginRef.value?.validate(async (valid: boolean, fields: any) => {
    if (valid) {
      loading.value = true;
      // 勾选了需要记住密码设置在 localStorage 中设置记住用户名和密码
      if (loginForm.value.rememberMe) {
        localStorage.setItem("tenantId", String(loginForm.value.tenantId));
        localStorage.setItem("username", String(loginForm.value.username));
        localStorage.setItem("password", String(loginForm.value.password));
        localStorage.setItem("rememberMe", String(loginForm.value.rememberMe));
      } else {
        // 否则移除
        localStorage.removeItem("tenantId");
        localStorage.removeItem("username");
        localStorage.removeItem("password");
        localStorage.removeItem("rememberMe");
      }
      // 调用action的登录方法
      const [err] = await to(userStore.login(loginForm.value));
      if (!err) {
        await router.push({ path: redirect.value || "/" });
        loading.value = false;
      } else {
        loading.value = false;
        // 重新获取验证码
        if (captchaEnabled.value) {
          await getCode();
        }
      }
    } else {
      console.log("error submit!", fields);
    }
  });
};

/**
 * 获取验证码
 */
const getCode = async () => {
  const res = await getCodeImg();
  const { data } = res;
  captchaEnabled.value = data.captchaEnabled === undefined ? true : data.captchaEnabled;
  if (captchaEnabled.value) {
    codeUrl.value = "data:image/gif;base64," + data.img;
    loginForm.value.uuid = data.uuid;
  }
};

const getLoginData = () => {
  const tenantId = localStorage.getItem("tenantId");
  const username = localStorage.getItem("username");
  const password = localStorage.getItem("password");
  const rememberMe = localStorage.getItem("rememberMe");
  loginForm.value = {
    tenantId: tenantId === null ? String(loginForm.value.tenantId) : tenantId,
    username: username === null ? String(loginForm.value.username) : username,
    password: password === null ? String(loginForm.value.password) : String(password),
    rememberMe: rememberMe === null ? false : Boolean(rememberMe)
  } as LoginData;
};


/**
 * 获取租户列表
 */
const initTenantList = async () => {
  const { data } = await getTenantList();
  tenantEnabled.value = data.tenantEnabled === undefined ? true : data.tenantEnabled;
  if (tenantEnabled.value) {
    tenantList.value = data.voList;
    if (tenantList.value != null && tenantList.value.length !== 0) {
      loginForm.value.tenantId = tenantList.value[0].tenantId;
    }
  }
};

//检测租户选择框的变化
watch(() => loginForm.value.tenantId, () => {
  localStorage.setItem("tenantId", String(loginForm.value.tenantId));
});

/**
 * 第三方登录
 * @param type
 */
const doSocialLogin = (type: string) => {
  authBinding(type).then((res: any) => {
    if (res.code === HttpStatus.SUCCESS) {
      // 获取授权地址跳转
      window.location.href = res.data;
    } else {
      ElMessage.error(res.msg);
    }
  });
};


onMounted(() => {
  getCode();
  initTenantList();
  getLoginData();
});
</script>

<style lang="scss" scoped>
.login {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  background-image: url("../assets/images/login-background.jpg");
  background-size: cover;
  position: relative;
  overflow: hidden;

  &::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    z-index: 1;
  }
}

.title {
  margin: 0px auto 30px auto;
  text-align: center;
  color: #707070;
}

.login-form {
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.9);
  width: 420px;
  padding: 30px 30px 15px 30px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.18);
  z-index: 2;
  transition: all 0.3s ease;

  &:hover {
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  }

  .el-input {
    height: 44px;
    margin-bottom: 18px;

    input {
      height: 44px;
      border-radius: 8px;
      background: rgba(255, 255, 255, 0.8);
    }
  }

  .input-icon {
    height: 39px;
    width: 14px;
    margin-left: 0px;
    color: #667eea;
  }

  .el-button {
    height: 44px;
    border-radius: 8px;
    font-size: 16px;
    letter-spacing: 2px;
    transition: all 0.3s ease;

    &:hover {
      transform: translateY(-2px);
    }
  }
}

.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}

.login-code {
  width: 33%;
  height: 40px;
  float: right;

  img {
    cursor: pointer;
    vertical-align: middle;
  }
}

.el-login-footer {
  height: 40px;
  line-height: 40px;
  position: fixed;
  bottom: 0;
  width: 100%;
  text-align: center;
  color: rgba(255, 255, 255, 0.8);
  font-family: Arial, serif;
  font-size: 12px;
  letter-spacing: 1px;
  z-index: 2;
}

.login-code-img {
  height: 40px;
  padding-left: 12px;
}
</style>
